Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app

Olympiad workbook

Exam: Olympiad workbook
Subject: NSEP
Chapter: Thermal Properties of Matter

Olympiad workbook · NSEP · Thermal Properties of Matter

A sphere and a cube having equal surface area are made of the same...

A sphere and a cube having equal surface area are made of the same material. The two are heated to the same temperature and kept in identical surrounding. The ratio of their initial rates of cooling is

Options

A $1: 1$
B $\sqrt{\frac{\pi}{2}}: 1$
C $\sqrt{\frac{\pi}{3}}: 1$
D $\sqrt{\frac{\pi}{6}}: 1$

Correct answer

D. $\sqrt{\frac{\pi}{6}}: 1$

Step-by-step solution

No Solution

Practice Thermal Properties of Matter on Quantrex Academy →

More from Thermal Properties of Matter

A small pond of depth 0.5 m deep is exposed to a cold winter with outside temperature of… Olympiad workbook Two identical rods made of two different metals A and B with thermal conductivities K_ A… Olympiad workbook A steel cooking pan has copper coating at its bottom. The thickness of copper coating is… Olympiad workbook Two identical rooms in a house are connected by an open doorway. The temperatures in the… Olympiad workbook A metallic wire of length l is held between two supports under some tension. The wire is… Olympiad workbook Consider a composite slab consisting of two different materials having equal thickness… Olympiad workbook Plots of intensity (I) of radiation emitted by a black body versus wavelength ( λ ) at… Olympiad workbook The temperature of an isolated black body falls from T_1 to T_2 in time t . Then, t=C x… Olympiad workbook Full Thermal Properties of Matter list All Olympiad workbook PYQs